A tip part (5) for a vision device. The tip part (5) comprises a housing (6, 7) adapted for accommodating a vision receptor. At least one light guide (15) of a transparent material having a predetermined length is arranged between at least one first light reception end (16) adapted for receiving light from a light source (9) and at least one second light emission end (17) adapted to emit light. The light guide (15) forms an integral part of the housing (6, 7).